This post on the Guardian’s bike blog is a sad reminder of how a simple solution that can save lives is still to be implemented.

At 3:15pm on a pleasant and clear 5 April, at the junction of Camden Road and St Pancras Way in Camden, 20-year-old London Metropolitan University student Paula Jurek was first knocked down and then crushed by an articulated lorry. Her injuries were so severe that her life could not be saved even by the doctors who rushed to the scene from a practice 100 yards away.

Critically, accidents such as these can easily be prevented by an almost insultingly cheap and simple invention. The Trixi Mirror.